isl_multi_from_base_templ.c

   1 /*
   2  * Copyright 2012,2014 Ecole Normale Superieure
   3  *
   4  * Use of this software is governed by the MIT license
   5  *
   6  * Written by Sven Verdoolaege,
   7  * Ecole Normale Superieure, 45 rue d'Ulm, 75230 Paris, France
   8  */
   9
  10 #include <isl/space.h>
  11
  12 #include <isl_multi_macro.h>
  13
  14 /* Create a multiple expression with a single output/set dimension
  15  * equal to "el".
  16  * For most multiple expression types, the base type has a single
  17  * output/set dimension and the space of the result is therefore
  18  * the same as the space of the input.
  19  * In the case of isl_multi_union_pw_aff, however, the base type
  20  * lives in a parameter space and we therefore need to add
  21  * a single set dimension.
  22  */
  23 __isl_give MULTI(BASE) *FN(FN(MULTI(BASE),from),BASE)(__isl_take EL *el)
  24 {
  25         isl_space *space;
  26         MULTI(BASE) *multi;
  27
  28         space = FN(EL,get_space(el));
  29         if (isl_space_is_params(space)) {
  30                 space = isl_space_set_from_params(space);
  31                 space = isl_space_add_dims(space, isl_dim_set, 1);
  32         }
  33         multi = FN(MULTI(BASE),alloc)(space);
  34         multi = FN(FN(MULTI(BASE),set),BASE)(multi, 0, el);
  35
  36         return multi;
  37 }